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Inventories (Tables)
12 Months Ended
Jun. 30, 2023
Inventory Disclosure [Abstract]  
Inventories
Inventories consisted of the following at June 30: 
(in thousands)20232022
Finished goods$328,094 $316,936 
Work in process and powder blends233,346 231,214 
Raw materials81,552 107,024 
Inventories at current cost642,992 655,174 
Less: LIFO valuation(85,362)(84,338)
Total inventories$557,630 $570,836